Lecture, four hours; discussion, one hour; outside study, five hours. Requisites: Physics 1A, 1B. Overview of central topics of orthopaedic biomechanical engineering, with focus on orthopaedic implant performance and how to evaluate new and existing implants. Topics include orthopaedic and biomechanical terminology and basic anatomy; introduction to free body diagrams and calculations of joint reaction forces; material versus structural properties; introduction to stress analysis; mechanisms of fracture patterns and fracture fixation; biomechanics of total joint replacement; contemporary bearing materials and tribology; design and evaluation of total joint replacements; and introduction to spine biomechanics, spine implants, and pure moment testing. Letter grading.